“You guys are the best. I just received my order and literally every time i describe my specifications on how the fretboards should look you guys deliver 10/10. the two long scale indian rosewood fingerboards looks simply spectacular and the ziricote is glorious. I usually dont take the time to write these but this time I had to. Thanks for years of wonderful service guys. And if you can find the guys who helped pick my recent boards, make sure to personally tell them how happy I am."

Loyal Customer, AM

Headstock Slotting & Drilling Jig

Headstock Slotting & Drilling Jig    
See side view.

Exciting News! We are in the process of completely reworking the headstock slotting and drilling jig to make it bigger, faster, better! 

What you can expect:

  • Compact tool design assists with two challenging tasks – headstock tuner hole drilling and slotting
  • Setup is quick and flexible as tuner hole drill blocks and slot templates can be changed out to match the task
  • Tuner drilling method is designed for a drill press for stable, accurate, and perpendicular tuner holes 
  • Standard 35mm tuner hole spacing is supported - 6mm, 6mm w/bushing, and 10mm
  • Each tuner hole drill block has two preset center height values and can easily be adjusted with precise shims
  • Acrylic slot template dimensions are taken directly from LMI plans and are pin registered for an exact match
  • Slot wall thickness can also be adjusted by referencing an engraved positioning scale on each template
  • Four toggle clamps providing secure, quick clamping of headstock for both operations
  • Machined from Richlite, a very rigid, dense, stable composite product – 100% recycled material

For a short time, we will have the steel string complete drill jig available at a discounted price - 15% off of the original price of $216.25. We will no longer offer the classical version of the original version. Components will be available until stock runs out at which point they will be discontinued. 

LMI developed the Headstock Slotting & Drilling Jig to easily rout consistent slots in the heads of classical guitars or vintage/parlor style steel string guitars. It is CNC machined of aluminum for accuracy. This tool also has a drill guide to accurately drill the 70mm-spaced tuning machine holes. The peghead of your guitar is securely held in place for the routing of the slots by three large thumbscrew clamping bolts.


 Slotted Pegheads with Robert O'Brien 
See also Overview & Directions

The Headstock Slotting & Drilling Jig, complete 
comes with:
• the base   
• the bar - either classical or steel string  
• a hex wrench  
• a drill bit (see below)

Replacement classical/steel string bars, bits/drills, and the brad point punch are also available separately, below.

SKU Product Name In Stock Each  
SPHSSJS Headstock slotting & drilling jig for steel string, complete Yes $198.51
HSSJS Steel String bar only, includes wrench and drill bit Yes $102.76
CA250DL Router bit, carbide, 1/4" cut, 1/4" shank
Yes $27.54
CA250UDL Router bit, carbide, combo up/down, 1/4" cut, 1/4" shank
Yes $52.87
CA250UDXL Router bit, carbide, combo up/down, 1/4" cut, 1/4" shank
Yes $57.19
HSSJ1332 Twist drill for 13/32" tuner post holes Yes $10.75
HSSJDB 6mm aircraft drill for steel string tuner holes
Yes $17.55
SPHSSJTP Brad point punch, 5" long, .400" diameter Yes $5.04

ClassicalBarHSSJCandTwistDrillHSSJ0131DRILL BITS

Either a bit with a flush bearing or a router base with a guide bushing can be used to machine the slot. We offer a ¼" down cut, spiral bit – CA250DL – for use with a guide bushing set up. Its down shear design greatly reduces tearout for a crisp, clean cut: ¼ shaft, 1" cutting length, 2½" overall length.

The tool is designed for routing and drilling on one side of the head at a time and this work is accomplished quickly and accurately. The tool can be paid for with the time saved on just a couple of jobs. Use our HSSJ1332 13/32" twist drill bit to drill the roller holes if you purchase the classical version or the HSSJDB 6mm aircraft (extra long) drill bit if you purchase the steel string version.


Use our CA250UDL combination carbide upcut/downcut bit for a clean finish on either face of your headstock. It's a little more expensive, but well worth it. We use this bit regularly in our shop. It has a 1/4" 2-flute upcut for 3/16" of the bit, then transitions to a 2-flute downcut for the remaining 9/16" of the cutting length. Overall length 2 1/2", Total LOC: .75".